Changing the stacked ensemble metalearner() method to the updated version in automl. The code previously in here metalearner = h2o.get_model(se.metalearner()['name']) is deprecated code. Therefore, it's been updated to metalearner = se.metalearner().
Resolves Issue https://github.com/h2oai/h2o-tutorials/issues/151
Changing the stacked ensemble metalearner() method to the updated version in automl. The code previously in here metalearner = h2o.get_model(se.metalearner()['name']) is deprecated code. Therefore, it's been updated to metalearner = se.metalearner().